Which to use
“mol” is a noun and “mou” is an adjective - they look or sound alike but fill different roles in a sentence.
- #40,405
- “mol” frequency rank
- #46,072
- “mou” frequency rank
- 86477
- confusion score
Side-by-Side Comparison
| Feature | mol | mou |
|---|---|---|
| Definition | Unidad de cantidad de sustancia empleada en el Sistema Internacional de Unidades, definida como la cantidad de sustancia de un sistema que contiene tantos entes elementales como átomos hay en 0,012 kg del nucleído carbono-12, o como la cantidad de una sustancia cuyo peso en gramos equivale a su número atómico. Si se emplea para expresar la cantidad de una sustancia, debe indicarse a qué tipo de unidades corresponde: átomos, moléculas, etc. El número de unidades contenidas está representado por el número de Avogadro. | Blando. |
Where the eye mixes mol and mou
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. mol (CVC) and mou (CVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Look-alike desk: mol vs mou
These two trip readers on the page rather than in the ear: mol is [ˈmol] while mou is [mu]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - l in “mol” becomes u in “mou”, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 86477, derived from the frequency rank of both members and their visual similarity.
mol is recorded at frequency rank #40,405, classified as anoun, pronounced [ˈmol]. mou is at rank #46,072, tagged as anadj, pronounced [mu].
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 86477, this pair ranks #5,261 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of mol vs mou
Shared letters: mo. Private to "mol": l. Private to "mou": u.
"mol" · 3 letters · shape CVC · "mou" · 3 letters · shape CVV
Frequently Asked Questions
Can "mol" and "mou" be used interchangeably?
Which is more common, "mol" or "mou"?
What to do next
Eye-level mix-up between "mol" and "mou" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "mol" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "mou" - compare definitions side by side with the headword page. Word entry
- This pair ranks #5,261 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "mol" and "mou" also get mixed up with nearby pairs, the highest-scored neighbour is "mou vs mur". Nearby pair
Confusion rank #5,261 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.